Mesh Color - CopperLicht Forum

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	Mesh Color

mysqlerror Registered User
Quote
2012-12-26 15:16:50

Hello I'm new to CopperLitch and here is one thing which i wasn't able to find anywhere

how can I set color to mesh which doesn't have texture on it
I need it because I want to build something with random colors and make some operations on colors to get new colors and dynamically change them

thanks

niko Moderator
Quote
2012-12-26 16:35:12

You can change the color of each vertex individually, if you like. So if you want to color a mesh, change all colors of all vertices. Use the color member of the vertex: http://www.ambiera.com/copperlic...

mysqlerror Registered User
Quote
2012-12-26 17:54:04

thank you
the documentation says that Color is {int}
should it be a CL3D.ColorF ?

I tried this approach but it didn't worked


    this.MyMesh = new CL3D.Mesh();
    var buf = new CL3D.MeshBuffer();
    this.MyMesh.AddMeshBuffer(buf);

    buf.Indices = [0,2,3, 2,1,3, 1,0,3, 2,0,1];

    buf.Vertices.push(createVertex( 0, 0,  10,   0, 0));
    buf.Vertices.push(createVertex( 10,0, -10,   1, 0));
    buf.Vertices.push(createVertex( 0, 20, 0,    0, 1));
    buf.Vertices.push(createVertex(-10,20,-10,   1, 1));

    var vertices = buf.Vertices;
    for (var v=0; v<vertices.length; ++v)
    {
        var vtx = vertices[v];
        vtx.Color = CL3D.createColor(255, 255, 0, 0);
    }

where {this} is CL3D.SceneNode

niko Moderator
Quote
2012-12-27 07:44:28

.MyMesh won't work, it's probably only usable if you implemented your own scene node and are using a property named 'MyMesh'. If you have a MeshSceneNode, you can get the current mesh using yourNode.getMesh();. But apart from this, setting the colors as you do should work.

mysqlerror Registered User
Quote
2012-12-27 11:35:34

I'm editing working example
Custom Scene Nodes example from
http://www.ambiera.com/copperlicht/tutorials.html

I'm using derived object from SceneNode


MySceneNode.prototype = new CL3D.SceneNode();

MySceneNode.prototype.OnRegisterSceneNode = function(scene)
{
    scene.registerNodeForRendering(this, CL3D.Scene.RENDER_MODE_DEFAULT);
    CL3D.SceneNode.prototype.OnRegisterSceneNode.call(this, scene);
}

MySceneNode.prototype.render = function(renderer)
{
    renderer.setWorld(this.getAbsoluteTransformation());
    renderer.drawMesh(this.MyMesh);
}

is there anything in this way which may conflict setting vertex colors ?

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